// declare function print(arg:string) : string;
declare interface ArkTools{
  timeInUs(arg:any):number
}
let i:number,j:number;
let cnt = 0;
let start = ArkTools.timeInUs();
for (i = 0;i < 10000; i++) {
  for (j = 0; j < 10000; j++) {
    cnt = cnt + i + j;
  }
}
let end = ArkTools.timeInUs()
// print(cnt)
// print(end - start)
print("test_for_plus1w:\t"+String((end - start)/1000)+"\tms");